The us Navy has exercised contract options funding Austal's acquisition of long lead-time material associated with the construction of two additional 103-metre Joint High Speed Vessels (JHSV).
美国海军已经行使合同选项，向Austal公司长期材料筹备注资，以建造两艘额外103米长的联合高速船(JHSV)。
Each step was optimized during Synthesis processes and single factor experiments were carried out to determine the most effective conditions such as solvent, time, material ratio and so on.
合成过程中对各步进行了工艺优化，通过设计单因素实验，找到了反应的最佳条件，如溶剂、时间、投料比等，使得产品收率有了较大的提高。
Each step was optimized during Synthesis processes and single factor experiments were carried out to determine the most effective conditions such as solvent, time, material ratio and so on.
合成过程中对各步进行了工艺优化，通过设计单因素实验，找到了反应的最佳条件，如溶剂、时间、投料比等，使得产品收率有了较大的提高。
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